GN 700 Indexing Knobs Steel, with Stepless Positioning

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GN 700 Steel Indexing Knobs, with Stepless Positioning Type: S - with standard scale 0...9, 100 graduations, acc. d1/100 A RA 0-10-20...90 / 10
Type: S - with standard scale 0...9, 100 graduations, acc. d1/100 A RA 0-10-20...90 / 10
GN 700 Steel Indexing Knobs, with Stepless Positioning Type: S - with standard scale 0...9, 100 graduations, acc. d1/100 A RA 0-10-20...90 / 10 GN 700 Steel Indexing Knobs, with Stepless Positioning Type: A - with arrow GN 700 Steel Indexing Knobs, with Stepless Positioning Type: B - neutral, without arrow or scale

Product description

Information

With these GN 700 indexing knobs a shaft can be infinitely adjusted in both directions. The anti-backlash mechanism ensures the firm locking of the shaft in any position.

This mechanism prevents any uncontrolled movement of the shaft. The locking action is a safety feature to prevent unwanted re-adjustments caused by backlash and vibration.

Example of an application; the locking of adjustable shafts (ball / roller bearing shafts).



Specification

Locating ring and bushing ring
Steel, blackened finish

Blocking mechanism
Steel, hardened and ground

Scale ring and rotating knob
Aluminum, black anodized finish

Arrow (Type A) and scale (Type S / KS)
  • Laser engraved
  • Centered between two mounting holes


RoHS compliant

On request

Special graduations
see „How to order graduations“

Technical drawing

3D
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GN 700 Steel Indexing Knobs, with Stepless Positioning sketch

Part Options / Table

Type

Awith arrow
Bneutral, without arrow or scale
Swith standard scale 0...9, 100 graduations, acc. d1/100 A RA 0-10-20...90 / 10
KSwith customized scale
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Metric

Dimensions in: Inch | Metric
d1d2 +0.001
Bore with keyway
d3d4 -0.008d5l1l2l3
2.60K 12K 142.052.17.221.73.351.57

Build & Price

Outside diameter d1
Bore d2
Type




Description

The anti-backlash mechanism which operates on the principle of a bidirectional freewheeling and antireversing basis allows the transfer of movement in both directions without backlash. The adjustable knob is not suitable for applications on machines or equipments which are exposed to vibrations.

The bushing is connected by the key and keyway to the revolving shaft.

The location ring remains static and centrally positioned by the bushing and the two pinch rollers, fixed to the machine frame or housing by three screws.

The rotating knob with the knurled barrel is carried by the bushing.

The scale ring is firmly anchored to the bushing and the driven shaft by two countersunk screws.

If the knob is repositioned, one of the follower pins – depending on the direction of rotation – pushes the pinch roller against the spring into an idling position which releases the bushing and shaft to rotate freely.

The second follower pin on the opposite side reduces the movement of its pinch roller and ensures at the same time a firm grip and forward movement of the bushing while the first pinch roller remains in an idling position.

When releasing the knob, the spring will push the pinch roller back into the grip position, thus linking the bushing again with the static section.

The scale ring is connected firmly with the bushing and any readjustment of the shaft can be accurately controlled.

This infinitely adjustable knob cannot, however, be used in such cases where the shaft to be adjusted runs ahead of the adjustment. The anti-backlash mechanism in this knob cannot be used as a bearing for the driven shaft.

Hints for installation

A perfect functioning can only be guaranteed if the shaft of the machine is positioned at a perfect right angle to the contact surface of the static part.

Selected Part

Total US Dollars (net)
$233.67
In stock: 1
In stock
Please note our quantity discounts (US Dollars).
MinMaxPrice
124$233.67
2549$214.20
5099$194.73
≥ 100$175.25
Weight: 1.278 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
RoHS compliant: Yes
This article conforms to RoHS, which means it complies with EU Directive 2011/65/EU for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
All Prices are in US Dollars. Taxes Not Included.

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